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Introduction to JavaFX MenuBar

Web development, programming languages, Software testing & others

Advantage:

A structured way of data aligning.

Easy to access the menu items.

Constructors of MenuBar:

MenuBar(): Creates an instance non parameterized constructor with a new keyword.

MenuBar(Menu m1,Menu m2, Menu m3……): Creates an instance set of Menus parameterized constructor with a new keyword.

Frequently Used Methods

Frequently used methods in menubar in javafx:

hide(): hide() method hides the menu.

show(): show() method shows the menu.

getMenus(): The getMenus() method show all the menus inside the MenuBar.

getItems(): getItems() method returns items of the menu.

setUseSystemMenuBar(boolean b): setUseSystemMenuBar() method used to set the property to System Menu Bar.

setOnShowing(EventHandler e): setOnShowing() method sets the property value showing.

setOnShown(EventHandler e): setOnShown() method sets the property value shown.

setOnHidden(EventHandler e): setOnHidden() method sets the property value hidden.

setOnHiding(EventHandler e): setOnHiding() method sets the property value hiding.

How to Create MenuBar in JavaFX?

Accessing JavaFX features user-defined class must extend Application.

In JavaFX creating MenuBar is the first step. MenuBar can instantiate by using new.

MenuBar menuBar =new MenuBar();

creating Menu is the second step. A menu can instantiate by using new.

Menu menu =new Menu();

creating MenuItem is the third step. MenuItem can instantiate by using new.

MenuItem menuItem =new MenuItem();

Adding MenuItem to the Menu is the 4th.

menu.getItems.add(menuItems);

Adding MenuItem to the Menu is the 5th.

MenuBar.getMenus.add(menu);

Create VBox or any other display class to add the menuBar is 6th.

VBox vBox=new VBox(menuBar);

Creating a scene means screen to display output is the 7th.

Scene screen = new Scene(vBox, length, width);

Adding Scene reference screen to the Stage object reference is 8th Adding output screen to Stage. We will get this stage object reference from the start predefined JavaFX method.

stage.setScene(screen);

At last display output screen by showing stage reference with the show ().

stage.show(); Examples of MenuBar in JavaFX

Following are the example of the menubar in javafx:

1. Adding Menu Items to the MenuBar

Code:

package com.menubar; import javafx.application.Application; import javafx.scene.Scene; import javafx.scene.control.Menu; import javafx.scene.control.MenuBar; import javafx.scene.control.MenuItem; import javafx.scene.layout.VBox; import javafx.stage.Stage; public class AddingMenuItemsToMenuBar extends Application { @Override public void start(Stage primaryStage) { primaryStage.setTitle("Adding Items to Menu Bar"); MenuBar menuBar=new MenuBar(); Menu menu=new Menu("Show"); MenuItem companyName=new MenuItem("EDUCBA"); MenuItem courses=new MenuItem("Courses"); MenuItem aboutEDUCBA=new MenuItem("About EDUCBA"); MenuItem feeStructure=new MenuItem("Fee Structure"); menu.getItems().add(companyName); menu.getItems().add(courses); menu.getItems().add(aboutEDUCBA); menu.getItems().add(feeStructure); menuBar.getMenus().add(menu); VBox vBox=new VBox(menuBar); Scene scene = new Scene(vBox, 401, 201); primaryStage.setScene(scene); primaryStage.show(); } public static void main(String[] args) { launch(args); } }

Output:

Explanation:

As you can see in the above output, we have added the first menu items to the menu and menu to the menu bar respectively.

Added MenuBar to the vBox and displayed the output.

2. Adding Menu Items and Sub Menu Items to the MenuBar

Code:

package com.menubar; import javafx.application.Application; import javafx.scene.Scene; import javafx.scene.control.Menu; import javafx.scene.control.MenuBar; import javafx.scene.control.MenuItem; import javafx.scene.layout.VBox; import javafx.stage.Stage; public class AddingSubMenuItemsToMenuBar extends Application { @Override public void start(Stage primaryStage) { primaryStage.setTitle("Adding Items to Menu Bar"); MenuBar menuBar=new MenuBar(); Menu menu=new Menu("Show"); MenuItem companyName=new MenuItem("EDUCBA"); MenuItem aboutEDUCBA=new MenuItem("About EDUCBA"); MenuItem feeStructure=new MenuItem("Fee Structure"); MenuItem javCourse=new MenuItem("Java"); MenuItem pythonCourse=new MenuItem("Python"); MenuItem cCourse=new MenuItem("C"); MenuItem angularCourse=new MenuItem("Angular JS"); menu.getItems().add(companyName); menu.getItems().add(aboutEDUCBA); menu.getItems().add(feeStructure); Menu subMenuCourse=new Menu("All Courses"); subMenuCourse.getItems().add(javCourse); subMenuCourse.getItems().add(pythonCourse); subMenuCourse.getItems().add(cCourse); subMenuCourse.getItems().add(angularCourse); menu.getItems().add(subMenuCourse); menuBar.getMenus().add(menu); VBox vBox=new VBox(menuBar); Scene scene = new Scene(vBox, 401, 201); primaryStage.setScene(scene); primaryStage.show(); } public static void main(String[] args) { launch(args); } }

Output:

As you can see in the above output, we have added the first menu items to the menu, sub menu items to the submenu, sub menu items to the menu and menu to the menu bar respectively.

Added MenuBar to the vBox and displayed the output.

3. Adding Menu Items to the MenuBar

Code:

package com.menubar; import javafx.application.Application; import javafx.event.ActionEvent; import javafx.event.EventHandler; import javafx.scene.Scene; import javafx.scene.control.Label; import javafx.scene.control.Menu; import javafx.scene.control.MenuBar; import javafx.scene.control.MenuItem; import javafx.scene.layout.VBox; import javafx.stage.Stage; public class AddingEventActionToMenuItems extends Application { @Override public void start(Stage primaryStage) { primaryStage.setTitle("Adding Items to Menu Bar"); MenuBar menuBar=new MenuBar(); Menu menu=new Menu("Show"); MenuItem companyName=new MenuItem("EDUCBA"); MenuItem courses=new MenuItem("Courses"); MenuItem aboutEDUCBA=new MenuItem("About EDUCBA"); MenuItem feeStructure=new MenuItem("Fee Structure"); menu.getItems().add(companyName); menu.getItems().add(courses); menu.getItems().add(aboutEDUCBA); menu.getItems().add(feeStructure); menuBar.getMenus().add(menu); Label selectionLabel=new Label(); public void handle(ActionEvent e) { selectionLabel.setText("tttt You have " +((MenuItem)e.getSource()).getText() + " item selected"); } }; companyName.setOnAction(event); courses.setOnAction(event); aboutEDUCBA.setOnAction(event); feeStructure.setOnAction(event); VBox vBox=new VBox(menuBar, selectionLabel); Scene scene = new Scene(vBox, 401, 201); primaryStage.setScene(scene); primaryStage.show(); } public static void main(String[] args) { launch(args); } }

Output:

Explanation:

As you can see in the above output, we have added the first menu items to the menu and menu to the menu bar respectively.

Added MenuBar and label to the vBox and displayed the output.